JPS60178536A - Command processing system - Google Patents

Abstract

PURPOSE:To improve the operability of a titled system by generating commands of the 2nd system with the 1st program which can start the 2nd program among plural systems, and requesting the 2nd program of the 1st program again. CONSTITUTION:A communication program 1300 is provided in the job partition 7 of a system 1100 for plural, e.g. two command systems 1100 and 1200 in one processor, and a communication control table 1400 provided between both systems 1100 and 1200 is provided with a job identification code, an answer area for requests during communication, a communication buffer, etc. Then, the program 1300 starts interruption processing and logical input/output programs 1005 and 1006 through the table 1400 to operate command interpreting and execution programs 1011 and 1012 in a job partition 1007, and an input/output request to a terminal 1 is allowed from a logical input/output 1040 to a program 1300 through the table 1400.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a command system when two or more command systems are installed in one processing device and one command system uses the other command system in a subordinate manner. This relates to a control method for a processing system.

(Background of the Invention) One of the conventional methods of using a computer system is that different users input commands independently from multiple terminal input/output devices connected to one processing device and process them simultaneously. There are several conversational multiple processing systems (hereinafter abbreviated as TSS systems).This TSS system will be explained using FIG.

The terminals 1 to 3 are each connected to an interrupt processing program 5 and a logical input/output program 6 in the processing device 4, and exchange interrupt signals and input/output data from each terminal. The job management table 41 has four pieces of information for each terminal, as shown in FIG. That is, whether or not a job (described later) corresponding to the terminal has already been registered in the system 42. If registered, the job number 43, the memory space location 44 for executing the job, and the device number 45 of the corresponding terminal.
management information is stored.

Memory spaces 7 to 9 (this is called a job partition) for job execution are memory spaces that are occupied corresponding to the usage from each terminal (this is called a job), and this includes the memory space for jobs. Execution control table required for execution 10. Command interpretation program 11, command execution program 1
2 is assigned. The control table 10, as shown in FIG. File name 19~
This is a table in which 20 correspondences are registered.

To explain the control using the TSSTSS method, the user starts the interrupt processing program 5 by pressing the interrupt key on the terminal 1.The interrupt processing program 5 starts with the flow shown in FIG. First, check the device number of the terminal where the interrupt occurred (101), and then check the job management table 4.
1 to check whether a job that is not compatible with the end already exists (102). If it does not exist yet, the interrupt is a job start request, but a job partition is allocated and registered in the job management table (1
03). Execution control is then assigned (104) into the job partition. Then, the command interpreter is loaded (+05) and control is transferred to it (106).

If a job that is not compatible with that end already exists,
Control is returned to the original program that was interrupted without doing anything (107).

The job number is generally managed by the O8, and there is usually a means for the logical job program 1006 and the logical file input/output program 1040 to know the job number to which the program being executed belongs, and this is also assumed here.

The command interpretation program 11 first performs initial settings such as the execution control table 10 in job start processing (201).
A command input prompt is displayed via the logical input/output program 6 to the terminal corresponding to the job, and the command entered by the user is input (202). Next, it is checked whether the input command is in the correct command format (204), and if it is correct (204), it is checked whether it is a command for job termination (205), and if so, the job management table 41 is used in job termination processing. Processing for termination such as deregistration of the job is performed (210) and the process is terminated. If it is another command, check whether a program that executes the command exists (206)
If so, load it (207) and transfer control (208).
). If the command formation is incorrect or if there is no processor to execute the command, an error message is output (209) and the prompt output and command manual processing 3!1 (202) is repeated.

The command interpretation program 11 and the command execution program 12 perform input/output with the terminal 1 via the logical input/output program 6, and the logical file input/output program 40.
File 5 which is stored in the disk device 50 via
Oven processing in the warehouse.

Performs freeze processing, read processing, and write processing.

The logical input/output program 6 indirectly performs terminal output using the logical input/output name registered in the execution control table, and the same program connects to the terminal for each job at the time of execution. As shown in Figure 6, first refer to the execution control table of the requesting job.301) Is the logical input/output name with the input/output request registered in the execution control table? Find out if (3
02, 303), if there is an output request (304), output processing is performed (305), and if there is an input request (306), input processing is performed (307). If it is not registered, an error code is returned (308).

The logical file input/output program 40 is written as a file process for a logical file in order for the command interpretation program 11 and the command execution program to determine the file to be used at the time of execution. This is a program for replacing file processing with actual files by writing the correspondence of 310 in the execution control table, and as shown in FIG.
3) Check whether the logical file name is registered in the execution control table (402), and if it is registered in St (4 (+3)), the actual file is oven processed (405), and the actual file is opened (405). File close processing (406)
, a process of continuously outputting data from the real file (407), and a process of writing data to the real file (408). If the logical file name is not registered, an error code is returned (409).

Although it is normal for a computer system to have one TSS type command system as described above, it is conceivable to incorporate two or more command systems with different purposes into one computer system. For example, a computational control system has a file format suitable for real-time processing and an execution command system with concise commands for program maintenance, but is not suitable for program development. On the other hand, a development command system that has a flexible file structure and many commands useful for text processing is suitable for program development. Even if these two types of command systems were installed on one computer system, they had no relationship with each other and could not perform linked processing. For this reason, for example, after developing a program using a command system for program development, you can convert it to the file format of the command system for execution, transfer it, and switch the command system or restart it from another terminal to create a command system for execution. was enabled and executed, and the execution results had to be displayed after returning to the development command system and then inversely converting the file format, making it extremely inconvenient to use.

[Purpose of the invention]

An object of the present invention is to provide communication means between two command systems in one processing device, so that they can be operated as if they were one command system, and the functions of each command system can be fully utilized. Our goal is to provide a good system.

[Summary of the invention]

If the purpose is very clear, such as a control computer, O8
Because it is optimized for that purpose, when processing that is different from its original purpose, such as program development, is accompanied by a certain decrease in operability and lack of flexibility. For example, files necessary for control are suitable for quickly accessing target data while tracing complexly related data, but so-called text data such as source programs, data, and lists used in program development It is not suitable for performing complex processing while scanning each character.

In addition, a command function with a simple control structure for maintenance, management, and debugging of the control system is sufficient, and advanced functions that create flexibility such as programming of processing procedures and symbol replacement during program development. does not have

Programmability - face and operability became more important, and O8, whose main purpose was program development, also appeared.

It is desirable to add a command system based on this idea to the control system and use it as a unified user interface to simultaneously control the old and new command systems.

Input/output processing from the command system is not performed directly, but is generally performed as input/output to logical input/output, and O8 performs input/output operations to actual input/output devices. By switching the input and output blade edges during this O8 process, communication from the new command system to the old command system becomes possible.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 8, in addition to the first command system 1100 which is equivalent to the command system shown in FIG.
There is 0. Furthermore, within the job partition 7 of the first command system 1100 is a communication program 130.
There is a communication control table 14 between the two command systems.
There are 00 ka.

The f62 command system 1200 includes a second interrupt processing program 1005 and a second logical input/output program 1.
006, second job management table 1041, second job partition 1007 belonging to the second command system
, a second execution control table 1010 existing in the second job partition, a second command interpretation program 1011, and a second command execution program 101.
2. There is a second logical file input/output program 1040 belonging to the second command system, and the second terminal 1001 belonging to the second command system communicates with the second interrupt processing program 1005 regarding interrupt signals and regarding data signals. A second disk device 10 connected to the second logical input/output program 1006 and belonging to the second command system
50 is a second logical file input/output program 1040
It is connected to the.

Here, the second job management table 1041, the second real #';(
1+1Inn real I n I n In 9 /7'l
1 y 'i V4i11$7 i r+ )r 礪mu10+1. Although the contents of the second command execution program 1012 are different, they are functionally the job management table 41. Execution control table 10, command interpretation program 11. This is equivalent to the command execution program 12.

The communication control table 1400 includes a communication control table 1400 between the first command system and the second command system.
A control table for communicating with the command system of
There are as many job partitions as there are job partitions of the second command system. The details of one of the communication control tables are
As shown in the figure. In FIG. 9, 2100 is an area for storing a group number indicating from which command system the job occupying the job partition corresponding to this communication control table was started. It has no value. 2150 is an area for storing the job number of the job occupying the job partition corresponding to this communication control table. The group number and job number together will be called a job identification code. 2200 is the program 1011
This is a file specification area for registering the real file name when a real file corresponding to the logical file 1b used by 1012 or 1012 exists in the disk device 50.

Details of the file designation area 2200 are shown in FIG.

In FIG. 10, 3100 to 3300 are areas for registering the names of logical files specified by the programs when the programs 1011 and 1012 refer to files 51, etc. in the disk device 50. Areas 3400 to 3600 are for registering the actual file names. If the programs 1011 and 1012 do not refer to files in the disk device 50, neither the logical file name nor the real file name will be registered.

The correspondence is registered only in the execution control table within that job. Therefore, the logical file input/output program is 1040.
The name of the logical file used by programs 1011 and 1012 is in the file specification area 3100 to 330.
If it is not registered in 0, refer to the file 1051 etc. in the disk drive 1050, and if it is registered, extract the actual file name in the disk drive 50 registered in 3400 to 3600 corresponding to it, and communicate. It is possible to indirectly request a file reference by specifying a file name to the program 1300.

2300 in FIG. 9 shows a request for setting processing requests and response contents to each other during communication between both command systems;
This is a response area. Details of the request/response area 2300 are shown in FIG. In FIG. 11, reference numeral 4100 is an initial activation request flag, and when the cross-signing program 1300 sets this flag to 1 and activates the interrupt processing program 1005, a new job is transferred from the first command system to the second command system. This is for requesting start. 4200, the logical input/output program 1040 sets data in the communication buffer 2600, and the communication program 1
This is a flag for requesting input/output to terminal 1 from terminal 300. 4300 is a flag used by the communication program 1300 to respond that the input/output to the terminal l according to the request from the logical input/output coupler 111006 has been completed.

A flag 4400 is used by the logical file input/output program 1040 to set request contents or output data in the communication buffer 2600 and to request the communication program 1300 to refer to the file 51 or the like. 4500, the communication program 1300 is the logical file input/output program 104
This is a flag for responding to a request from 0 that reference to the file 51, etc. has been completed.

FIG. 9 2400 shows a control block (referred to as an event control block and ECB) for synchronizing and restarting the second command system from the first command system.
For example, when the logical input/output program 1006 specifies the ECB 2400 and performs WATT processing and is in the waiting state, the communication program 1300 specifies the ECB and performs the PO8T processing to perform the logical input/output. The program 1006 can be released from the waiting state and restarted. PO8T processing by the communication program 1300 is performed by the WAI of the logical input/output program 1006.
When it precedes T processing, W of the logical input/output program
AIT processing continues without entering a waiting state. Similar processing is possible for the logical file input/output program 1040 and the communication program. 2500 is the second
This is an ECU for synchronizing and restarting the first command system from the second command system.

-The above WAIT processing and PO8T processing are usually 1t-At
It is realized as a macro command (or supervisor call command) provided by the machine system O8,
This is also assumed to be the case here.

FIG. 9 2600 shows WAIT~PO8 as described above.
This is a communication buffer for exchanging commands, messages, data, and request parameters during communication between the first command system and the second command system by T processing.

The procedure for controlling the second command system from the first command system will be described below.

In FIG. 8, the command interpretation program 11
Processing as shown in Figure 2 is performed. That is, after job start processing (501), a command is output to prong 1 on terminal l and a command is input (5o2). If the command has the correct format (504), the job is processed if the command is for ending the job, and the process of disconnecting from the second command system (contents are the same as in 5] 4) is performed (
512) Iru. If the command is for connection with the second command system (506), the communication program 1300 is called to perform the connection process (5) 3).
Go to the next command input process (502). If the command is for disconnecting the second command system 11 (50
7) Call the communication program 1300 to perform the disconnection process. If it is a command for the second command system (508), convert or generate a command for the second command system and set it in the communication buffer, then call the communication program and send the command (5] 1) .

If none of the above is true, it is assumed that the command is from the first command system 11, and a program to execute the command is searched for (509), loaded, and control is transferred (510).
).

The communication program J300 performs processing as shown in FIG. That is, if the processing content when called is a join process (601), an empty communication control table is searched,
Write the group number of the first command system l (6
02). Next, set the initial startup flag 4100 (60
3) Interrupt processing program 1 of the second command system
005 is activated (604), and a WAIT is performed using the ECB2500.

The interrupt processing program 1005 performs processing as shown in FIG. That is, the cause of starting the interrupt processing program is checked (701), and if it is due to an interrupt from the terminal 1001, the device number of that terminal is found (702), and the job management table 1041 is searched from that number. The corresponding job number is searched (703). It is checked whether this job number has already been registered in the job management table (704), and if it has been registered, control is returned to the original program without doing anything (705), but if it has not been registered, it is The group number is written into the communication control table of the group (706).

If the interrupt processing program is activated from the communication block [I-gram, it searches for the communication control table with the activation request (712).
.

After that, initialize the communication control table 707), allocate a job space, and register it in the job management table 708), 709~
711 is similar to FIG. 4 104-106.

Returning to FIG. 8, the command interpretation program 1011 and the command execution program SI O 12 are started, but when these programs input commands and data from the terminal or output messages, the terminal 10
If the job is started from 01, the input/output request is made to terminal 1001, and if the job is started from communication program 1300, the input/output request is made to terminal 1. This is controlled by the logic program I (106r), and the process is shown in Figure 15. Find the job number of the program L1 program 11 that called the logic program (801), and search the communication control table. Determine the group number of the job corresponding to the job number (802). If the group number does not belong to the first command system, perform the same processing as shown in FIG. 6 and perform input/output to the terminal 1001 ( 804).If it is the group number of the first command system, write the output message or input/output request parameters to the communication buffer (805), and set the terminal input/output request flag 4200 to cell l-L (806) + ECB2500 to PO8T.
L (807), WAIT with ECB2400 (80
8) When WAIT is released, the input data or input/output result code in the communication buffer is fetched (809).

Also, when the command input to the first command system is from the second command system (see Fig. 12, 5).
11), if a file of the first command system is specified in the command, the communication control table 140
0 file specification area 2200, that is, 3 in FIG.
The correspondence between logical file names and real file names is registered in the paired areas 100 and 3400. Therefore, the command interpretation program 1011 and the command execution program 1012
However, when the logical file input/output program 1040 is requested to input/output a file by specifying a logical file name, the logical file input/output program 1n44 performs the processing shown in FIG.

Progera t1 called the logical file input/output program
Find the job number (901), search the communication control table, and find the group number of the job corresponding to that job number (901).
902), if the group number is not the group number of the first command system, the same product processing as that shown in FIG.
Input/output processing, etc., is performed (904). If it is the group number of the first command system, the actual file name determined from the request parameters such as output data or input/output and the file specification area is folded into the communication buffer (905), and the file input/output flag 4400 is set.906)+
ECB2500 POS T T, (907), E
WAIT at CB21+00 (90 B). W.A.I.
When T is released, the input data or input/output result code in the communication buffer is fetched (909).

By performing PO8T at 807 in FIG. 15 and 907 in FIG. 16, the communication control program WAIT at 605 in FIG.
is canceled. The communication control program then searches the communication control table and finds one with the request flag set (606).

If the request content is a file input/output request (607)
, calls the logical file input/output program 40 and performs processing such as file input/output according to the real file name in the communication buffer, output data, or request parameters (
60g). In this case, since the real file name is used directly, there is no need to convert the logical file name to the real file name. Next, set the file input/output completion flag 4500 and execute ECB.
2400 to PO8TL (609), ECB 2 again
WAIT at 500 (605).

If the request content is terminal input/output, and the request parameter in the communication buffer is a command input request (610), the process ends without doing anything. This is because it means the end of the communication program that previously requested the transmission of the command of the second command system. In other words, the second command system continues to wait for the next command input request.

On the other hand, if it is not a command request but a manual request for data, #+i! according to the output data in the communication buffer or request parameters! The i-control input/output program 6 is called to perform input/output of the terminal 1 (611). Next, the terminal input/output completion flag 4300 is set and the ECB 2400
POSTL (612).

WAIT again with ECB 2500 (605).

When disconnection processing of the second command system is specified for the communication control program, a command for terminating the second command system is created in the communication buffer, and the terminal input/output completion flag 4300 is set to the cell number 1. ~,ECB24
PO8T 00 (613).

In addition, if the communication control program is specified to send a command for the second command system, the command for the second command system is placed in the communication buffer,
Set the terminal input/output completion flag 4300 and ECB24
00 to PO8T(614)L, then ECB 25 again
WA l rr- (605) at 00.

In this embodiment, a one-to-one relationship between one first command system and one second command system is shown, but there are n first command systems and m second command systems. Assuming the case of l vs. m, n vs. 1.
It is clear that the n-to-m case can be extended using the same concept, and by assuming a similar control method for the relationship between the second command system and the third command system, From the first command system to the second command system, from the second command system to the third command system, and so on.
It is also clear that a series connection of more stages is also possible.

〔Effect of the invention〕

According to the present invention, a single processing device has multiple development environments such as an execution environment suitable for real-time control and a development environment suitable for program development, and commands that provide easy operation of the program development environment. Using the processing system 1, the command processing system of the execution environment can also be executed using the same interface, and furthermore, it becomes possible to proceed with work by combining both commands.

Therefore, it is possible to realize a command processing system with good operability, which cannot be realized in a real-time control execution system.

It is also possible to remove the development environment C program when development is completed.

[Brief explanation of drawings]

Figure 1 is a configuration diagram of a conventional command system, Figures 2 and 3 are configuration diagrams showing conventional control tables necessary for it, and Figures 4 to 7 are diagrams of conventional processing programs necessary for it. Flowchart, Figure 8 is a configuration diagram of the command system of the present invention, Figures 9 to 11 are explanatory diagrams showing added control tables necessary for it, and Figures 1 to 16 are diagrams showing the control tables added thereto. FIG. 3 is a flow diagram of the necessary processing program. 1.2, 3.1001...Terminal, 5.1005...Interrupt processing program, 6.1006...Logical input/output program, 7.8.9.1007...Job partition (job space), to, 30, 33゜lO】0...
・Execution control table, 11,31,34゜1011...Command interpretation program, 12,3235.1012...
Command execution program, 40°1040... Logical file input/output program, 41°1041... Job management table, 50.1050... Disk device, 5], 5
2.1051.1052...File, 1300...
・Communication program, 1400...Imo 2 Prisoner 3 Country 1/) Kaya 40 Rod Otsu Prisoner'V Mouth Kaya 8 Eye Kaya/I fD,,. 41004200430044” d';00ヰ12 prisoners 13 prisoners

Claims (1)

[Claims] 1. In a computer system having two or more command processing systems in one processing device, a first program belonging to a first job in the first command processing system is transferred to a second program in the second command processing system. a step of newly starting a second program as a job; a step of knowing a code for identifying a job to which the program belongs to the first program; and a step of instructing the first program to command a command of the second command processing system. and when the second program requests input from the command input Ml of the second command processing system or output to the message output device of the second command processing system, A command processing system comprising the step of requesting the first progera t1 again. 2. The first program requests input/output to the command input device or message output device of the first command processing system according to the re-request, and responds the result to the second program; job or second
The commands for the first job are input one after another from the command input device of the first command processing system in the same mode, and the commands for the first job are executed by the first program knee, and the commands for the first job are executed by the first program. 2. The command processing system according to claim 1, further comprising the step of receiving and receiving a command for the second job and sending the command to the second program. 3. The first program can receive the message output by the second program, and sequentially output it to the message output device of the command processing system in Section 1 without distinguishing it from the message output by the first program. The command processing system according to item 1, characterized in that: 4. converting the format of a first file managed by the first command processing system into the format of a second file managed by the second command processing system in the first program; The program specifies the first file to be used by the second program, and when the second program requests file processing (open, close, read, write, etc.), the program specifies the first file to be used by the second program. a step of requesting the first program again; and a step of the first program performing the process on the first file in accordance with the re-request and transmitting the result to the second program; 2nd above
2. The command processing system according to claim 1, wherein the first file can be referred to under the control of the first program without changing the program.